Query a WordPress page by its title which has a parent page

Hi there,

Im trying to query a page by its title.

So far i have the following:

<?php
query_posts('pagename=features');
if (have_posts()) :
while (have_posts()) : the_post();?>

<h2><?php the_title(); ?></h2>
<?php the_content(); ?>
<?php endwhile; ?>
<?php else : ?>
<h3 class="center">No Section available</h3>
<p class="center"><?php _e("No Section available"); ?></p>
<?php endif;
//Reset Query
wp_reset_query();
?>

[Moderator Note: Please post code & markup between backticks or use the code button. Your posted code may now have been permanently damaged by the forum’s parser.]

The main issue here, is it have 7 pages called features, which are under different parent pages.

How do i target a child page title?

Thank you